GATE 541 Physics for Computer Games

Java Physics Engine Demo

2012-01-31T08:45:00.000-08:00

Below, you can find a demo of my physics engine. The engine is coded in java and its main architecture is based on Ian Millington's book, Game Physics Engine Development. Engine still contains some bugs on collision part. When a collision is being resolved, interpolation resolution is carried out a little carelessly. This results in rigid bodies being pushed into another rigid body while another interpolation is being resolved. Also when a round object hits a rectangle one right at its corner, the generated contact wouldn't have the proper contact normal.

Besides these two points, engine works pretty good (and pretty fast for a java program).

marbles

2012-01-26T08:47:00.000-08:00

This game was supposed to be a fireball throwing/destroying game. However as can be seen from the video, the collusion detection and resolution steps are heavily bugged. Therefore the game could not be developed properly. The velocity resolution cannot take restitution into account properly. This may be because of the axis alignment process to the contact normal, which is used to ease processing.

Trapezzen

2012-01-26T08:29:00.000-08:00

This is a trapeze like game which a performer swings with trapezes and jumps at trampolines while s/he is trying to reach a finish point without falling down or bumping into obstacles to complete a game level. Swinging trapezes are simulated with collision like things using rope physics and trampolines are modeled as anchored springs. Performer is modeled as a rigid body of uniform rectangular box which is also used as bounding box of the performer. Collision detection and collision resolution is performed between bounding boxes, bounding spheres and planes using the physics engine implemented during this course.

Super Alien Boy

2012-01-25T14:33:00.000-08:00

Super alien boy is a 2D fantasy action game where the player can create and use physics-based objects to beat hazardous puzzles. In a world of dungeons, objective is staying alive and reaching exit of dungeons.

Super alien boy, can create boxes from nothing and can throw ropes to walls and roof. Boxes are spring and ropes are cable in reality. There are holes and bullets which can kill player. Gravity effecting player and bullets.

Jumpy Dungeon

2012-01-25T12:37:00.000-08:00

“Jumpy Dungeon” is a 2D, top-down, hack-and-slash game for iOS devices using their accelerometer capabilities. The game works on iOS platform using accelerometer results of the device to produce forces in the game. Cocos2D v1.0.1 will be used as a game engine. The game is developed using a Mac with Mac OS X v10.7.2 and the IDE is Xcode v4.2.
The acceleration of the device in 2D space (z direction is not considered) is directly applied to the warrior's mace. Since the mace is shackled to the middle point of the screen with a spring behavioral force, its movement radius is limited. According to the mace movement, the warrior also moves indirectly, because the chain of the mace behaves as cable. When the mace and one or more bullets are collided they perform an elastic collision.

Cloth simulation in android

2011-02-13T06:16:00.000-08:00

In cloth simulations using springs in cloth modeling is the most preferred way. Here is an application of cloth simulation developed on android. Also you can tear springs if you pull them enough. While programming in android you can use gravity sensors. In this application the cloth is also affected from the gravity but since I didn't know to change the gravity in the emulator I couldn't show it.

Pailard

2011-02-13T06:13:00.000-08:00

This is my first game study in android. This is a billiards like game. You hit other balls and when you transform all of the balls you pass to next level. There is friction, balls get slower in time. You give an initial direction and velocity to the ball you control. When balls collide they react according to momentum rules.

Liquid Colors

2011-02-13T05:59:00.000-08:00

One of my "Game Physics" course assignments was about fluid dynamics and I developed an interesting study using this topic.

Program is written in java so it works on PC, Mac and Linux platforms. Program presents the user a surface which holds a color density field and a velocity field. User is able to control these fields. By this way he or she can create interesting visuals. The color density acts as particles and moves along the velocity field. While particles with different color densities moving each other, some diffusion occurs. So in some parts, colors may blend. Jos Stam’s paper is taken as base model for implementing the fluid dynamics methodology, but since it is for smoke simulation it is not directly used. Related parts are used and some changes are done.

You can add color density and velocity to the surface by the help of mouse. Right click for velocity, Left click for color density. You can select a color and continue to work on the surface with that color. Selected color is shown at the bottom of the window. You can change the selected color by clicking on it. After you select a color, the points you drop onto the surface by left mouse clicks will have that color tone.

ps:This project is given as term project on another course Game Aesthetics (GATE 511)

Run away

2011-02-13T03:52:00.000-08:00

This game is about a boy tries to ran away from the ghosts. Boy can be controlled by left and right arrow keys. You can make him moves faster by clicking both up and left or right keys. It will jump from the hole by clicking space and up keys. if you can't jump from the hole you will lose a life and after three times you will be game over. You must help the boy avoid collision by the bricks , when a bricks hit the boy, his face becomes red and he cries.

You can whatch it here:

http://www.youtube.com/watch?v=y-RmuIayj20

Bolito

2011-02-12T15:15:00.000-08:00

This is a game architecture study inspired by the game gish. User controls a character which is composed of springs. You can control two features about the character; movement direction and spring constants of the springs which makes up the character. The game is developed on an android device and written in java.

The character is exposed to gravity but you can change the direction of gravity by changing the orientation of the device. By this way you can make the character move forward or backward. Gravity sensors are used for this purpose.

Touchscreen is used to change the spring constants. When you touch the screen the spring constant of the springs increase and when you release your hand spring constant decreases to a lower value. By changing the spring constants user can make the character make different movements like jumping.

This video is captured on an emulator, since I did not know how to change the gravity on the emulator, gravity sensor is not used in this video. Also for this application emulator is slower than a real device. It runs faster than this video on my device.

Collider Bombs

2011-02-12T11:54:00.000-08:00

In this Android game, user takes control of some removable and exploding components and use them to collide same colored rigid bodies. User can cut the springs or remove some of the rigid bodies and make the way for the entities. The game is developed with Eclipse and runs ok on my Galaxy S. This is my first experience for mobile game development and using Java is good to speed-up things. Its really good to have a easy interface to install your application to the phone, eclipse just outputs the necessary -single- .apk file. But when debugger is connected to the emulator program runs very slow, it is problematic to debug the program and I experienced some deadlock problems .

The physics engine and the game-play part is separated and game uses collision callback to handle collision events. Game entities holds the rendering and game specific details while the physics engine and the rigid body classes are only using necessary data. Rigid body dynamics supports box and sphere shapes. Broad-phase collisions are handled via radius check and then the possible collision are

Here is some of the physics engine features: Rigid Body dynamics, Force Fields, Gravity Keyframe Animated Bodies, Springs Collision listeners, sphere and box shapes, friction, joints, raycasts.

There are 4 levels exist in the game. The first level is the tutorial part and you just click the entity to see the game's mechanic. The second level has a bomb attached to a spring. All you have to do is cut the spring and drop the bomb to a good place where it should effect dynamic bodies and make them collide.

Third level is a testing area and shows the joint system, not completed yet. And the latest level is a completely different game created with the same physics engine where you try to avoid collisions with the random rigid bodies. The scoring system is not ready yet for this level.

I hope you will enjoy with this term-project game. Serdar, out.

Mild Shark

2011-02-12T10:36:00.000-08:00

Mild Shark is a Wii game built on C++ usingMLLib and Programmer’s Notepad. The players aim is to feed Lenny, vegeterianshark, with proper foods in the sea. Bubbles will be produced that will capturethe food and bring it to Lenny with the help of stream. Stream and flowingfoods always change. If the player feeds Lenny with fish, points will be lostwhereas if the player feeds Lenny with vegetables, points will be gained. Atthe end of the level, 300 points lead to a win and -200 points lead to a loose.Wii remote adjusts the position of the pump. A button will produce the bubble as long as pushed. Home button is used to exit. I encountered many difficulties during the development of the game.Workingemulator compatible with GPU can not be found. Coding in Wii is a completely different experience and tedious. Documentation is so limited. Finally, I have used an Open Source library that includes bugs and solving thesebugs were difficult. Below is a screenshot of the game. Since there were notany compatible emulator, it is not possible for me to capture a video using pc,the video will be uploaded soon, captured from TV and Wii.

Christmas MadnesS

2011-02-12T10:16:00.001-08:00

It's a Wii game developed on C++ using MLLib. The game is about the endeavour of an intimidating fake Santa Claus trying to deliver Christmas presents to their belonging homes by throwing them and using help of various obstacles that impose several different physical phenomena. To succeed the level, all presents must be delivered to houses (falling presents in the range of the house is considered as to be delivered safely). The game is not a score based game. There are win or lose conditions only. Jack’s position is adjusted by the player. Wii remote adjusts the position of Jack. Pressing B will throw the present. Home button is used to exit. The development process was so painful due to several problems. First of all, finding an emulator compatible with GPU of my computer was impossible. Coding in Wii is completely different and tedious, documentation available on the internet is limited that makes debugging very time consuming and tedious. Below is a screen shot of the game. Since I could not find a working emulator compatible with my GPU, I can't capture a video from pc, so I will capture with a camera from TV and upload here soon.

Marble's Hell

2011-02-12T09:56:00.000-08:00

or video's actual link

This game is similar to other labyrinth-ball-maze games. In game, user takes control of platform and let the ball find it's way to finish location and eventually save the marble from labyrinths.

In Particle Engine, Anchored Spring, Spring and specific version of Anchored spring to connect camera and marble is used. Furthermore, damping or friction and gravity is also used for both spring-ends. And particle fireworks is used when you finish your game. So there's also an additional force generator usage for Fireworks here.Marble is able to collect each Bonus because of my Particle Engine's Collision detection system.

For rigid body dynamics, AABB collision and QuadTreeSpace is used. All models are imported to Panda3D and used in engine as TriMesh geometry and Sphere body. To load models to physics engine, for position and orientation, Quaternion values of loaded model is used. For rigid body collision, collision bits are also used to define which object can collide with which object. For rigid body dynamics after I realized my own Rigid Body physics and Panda are not interoperable, I used integrated Open Dynamics Engine.

On beagleboard version of Marble's Hell, panda's collision system is being used for only collision between rigid bodies, all other actions are done by using both my particle engine's math functions and other functions.

2011-02-12T04:43:00.000-08:00

Reach the Target

In the game , user takes the control of a ball with the goal of making it to the
predetermined position on a board which is visualized as the red target mark.

In the planned version , force generators and opposing ai forces exists. However , due to limited time , only a subset of the features are realized.

In this version, all the entities are modeled as rigid bodies. The walls are modeled as static rectangular rigid bodies. Upon collision , their physical properties are not changed.

The entity controlled by the player is a circle. The player input is translated as forces applied to the center of mass of the player entity. The player can push other physical entities (circles and rectangles) and try to move the ball to the target.

Video link: http://www.youtube.com/watch?v=go9VYY6LzmU

Kill The Ragdolls

2011-02-11T16:33:00.000-08:00

Here is my game. The only control is to click on the rope and cut it. The rest is taken care of by the engine. Game art and levels will be added soon. Enjoy.

The link to the game itself:

http://www.swfupload.com/view/154476.htm

Süleyman

The swf below is 800 X 600. Please follow the link for a better view.

Snowy: The snowman

2011-02-10T11:30:00.001-08:00

This game is about rescuing a snowman from melting by reaching him to the fridge. The game is like an old school 2D arcade game that player controls a snowman. The snowman has really effective guns like his hat, scarf, snowballs and he is not afraid to use them!

The game is developed in Visual Studio 2008 using C# language with XNA extended. This game is for PC (also for Xbox with a little change in code thanks to XNA).

Particle systems are used in the game. Every object is a particle or made up with particles. There are some spring like things used as rope and bungee. Gravity, friction, throwing forces are used. Some kimd of bounding box collision detection and resolving is used (althought there are some mistakes).

It was a great experience to use real physics in a computer game. On the other hand we need to modify the physics to make video games better looking for the players.

Game video :

http://www.youtube.com/watch?v=jJpoU6M8_Ok

Tilt Game

2011-01-30T11:42:00.000-08:00

My game is a tilt game. Player needs to transport the balls to the target positions
as soon as possible.There are springs and ropes which complicate player's job. Especially springs cause the balls to move suddenly in unexpected directions.

The game uses a rigid body dynamics physics engine to calculate the positions and orientations of the balls. The physics engine was developed on the class. All the forces and torques are calculated with the physics engine and then with forward dynamics all appropriate physical quantities are calculated. Moreover the collision detection is based on the system we have done in the class.

I have learnt very important tasks of physics engine development. But in fact I have realized that this is just the introduction to the concept. This is a huge subject and ones shall slug on to learn.

I have realized that if developer is using a engine which has a well-prepared user interface and which is stable the developing process of a physical arcade game is so feasible. So in fact the most important job to develop a game, should be designing a stable physical engine which has a well-prepared user interface.

"Tosun" Mouse :)

2011-01-30T05:53:00.000-08:00

My game project is a physics-based Flash game, which is called "Tosun Mouse". This is a Flash game I can add only the first level, but later I will add more. This level has collision detection, and gravity. Next levels will have cables and springs. This is the video of the first level (for that level user should throw the ball from the correct place, and the ball shouln't hit to the cat.) :

ALABARDA

2011-01-28T14:08:00.000-08:00

Platform: Python 2.6 on Ubuntu 10.04 LTS - the Lucid Lynx

Physics: Currently implemented models: Rigid bodies, Force generation and Collision Detection. Spring and rope model will be added soon.

Video Screen Capturing :[RecordMyDesktop] --> $ recordmydesktop -o alabarda.ogg

3D Cut the Rope and Collide

2011-01-28T11:57:00.000-08:00

3D Cut the Rope and Collide : A game created using C#&XNA Game Studio. User uses wasdqe keys to apply force on the ball in three dimensions. Players points are reduced by passing time and Amount of force applied on the ball. Points are gained by collision with the objects, and amount is proportional to the square of collision velocity. User can cut the rope by dragging the mouse across the lines.

There are 4 levels which can be started by pressing F1,F2,F3 and F4. (Fourth level is the easiest one)

http://www.youtube.com/watch?v=pQ-UIuNwWms

http://www.youtube.com/watch?v=L4DNDArMD0E

Creating a game with physics was fun but took longer time than I had been expecting. Physics were implemented by following the objects hieracrhy of Ian Millington's Game Physics Engine Development book. After coding the physics, turning it into a game was relatively easier.

System Requirements:

WINDOWS

.NET Framework 4.0 :http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992&displaylang=en

XNA 4.0 :http://www.microsoft.com/downloads/en/details.aspx?FamilyID=a88c6dec-aeae-42cd-a108-d35c013c3b97

KillZone (Liberation)

2011-01-21T16:26:00.000-08:00

KILLZONE Liberation is an action game for the PlayStation Portable. Player has to finalize self assigned task in each stage. Player can customize character with points. There are three upgradable utilities that to be changed to get different power schemes. Player have to be fast as possible to get more credits keeping the shots at minimum to finalize task.

Some interesting features:

Water spray model.
Explosion side effects
Guided missiles (motion sensed)

Ragdoll Masters

2011-01-15T04:18:00.000-08:00

Ragdoll Masters is developed by Ragdoll Software, which actually a single person -Matteo Guarnieri. The game features an adjustable gravity environment for your ragdoll fights. The player only controls the head of the ragdolls and the rest of the body moves according to the laws of physics and constraints set by the developer. The aim of the game is to hit the opponent as much as possible and after a preset amount of hit points the opponent will explode.

The rules for hit points might be a little hard to grasp at first, but basically:

Arms and legs have to parts (much like a real person) the upper and the lower parts. Lower parts are immune to hitting, they can only be used to hit the opponent. The rest of the body is "hittable" :)
Head is the strongest part of the ragdoll, when another hittable part and head collides, the head wins the blow. When two heads collide both parts suffer from the blow.

Also, you can observe the severity of your situation from your wrists. As they become redder, you come close to exploding and losing the game.

The game is shareware, you can download and play it with certain limitations. If you like the full version it costs 8.38 Euros, without tax. You can obtain it from http://www.ragdollsoft.com/ragdollmasters/

Gish | Life isn't easy when you're a 12 pound ball of tar...

2010-11-30T07:44:00.000-08:00

Gish isn't your average hero, in fact he's not your average anything... see Gish is a ball of tar. A Sunday stroll with his lady friend Brea goes awry when a shadowy figure emerges from an open man hole and pulls Brea into the ground below. Following Brea's calls for help Gish suddenly finds himself in the subterranean sewers of Dross, a long forgotten city filled with twisting corridors, evil traps and some of the most demented creatures imaginable.

Besides movement, Gish has four abilities: becoming sticky, slick, and heavy, and jumping/expanding. When sticky, he can climb up walls, stick to ceilings, and plant himself firmly to a solid object. Becoming slick makes Gish slippery and frictionless, letting him slide down pipes and squeeze out of being crushed. Using heavy turns Gish's body into a rigid weight, allowing him to fall faster, squash enemies, smash breakable platforms, sink in water, and resist being crushed. To jump, Gish must first compress his body, then expand to launch himself into the air.

The abilities can be combined for use in certain situations; for instance, while sticky and slick, he can climb walls without grabbing loose objects, and while slick and heavy, he can slide downhill at high speed.

Trine

2010-11-30T07:20:00.000-08:00

Trine is a physics-based action game where three characters allow clever solutions to challenges created by hazardous puzzles and threatening enemies. The gameplay is based on fully interactive physics - each character's different abilities and tactics can be used to invent new ways to overcome obstacles and save the kingdom!

Trine is the latest of these neo-classic games and it's an impressive, modernized take on the sort of effort that dominated through the 16-bit era. It does feel a little unfinished, as though the developers ran out of money or were pressured to get the game out the door.

Gamers have control of three unique characters: a thief, a wizard, and a knight. Each has their own abilities they can use to traverse the game's environments and dispatch of enemies.

Our heroes' goal is to free themselves from the curse that has bound them together and rid the land of the usual evil that has consumed it. Along the way they'll solve puzzles, kill lots of skeletons, and earn experience points that can be spent to gain new skills.A lot of the green vials that contain precious experience points are hidden, so there are many secrets to be found for players that want to put in the effort.

Trine is a lot of fun and definitely worth playing.

For more, visit: My Trine Review Page

Dancing Particles

2010-11-24T10:38:00.000-08:00

Behold, our small fireworksshow created using C++ & OpenGL.

Soundtrack: Pirates of theCaribbean/The Curse of the Black Pearl/He's a Pirate

Let's celebrate!

Caution! Involves music!

Gamze & Evren

Wake Up the Box 2 (Office Edition)

2010-11-10T23:45:00.000-08:00

Wake Up the Box 2 is created by Eugene Karataev . In this game you must wake Mr.Box by disrupting his balance. Two physics issues are most used in this game : "Balance" and "Gravity". You can use a set of wooden objects like the last version of the game. In addition, there are 3 new elements in second version which you can use benefits of them to wake our little Mr.Box:

1) Stone-like object which makes wooden objects vanish suddenly as soon as the touch each other.

2) Links of paperclips which flex and swing.

3) Trampolines which are objects that act like bouncy surfaces.

You can play the game here: http://www.notdoppler.com/wakeupthebox2.php

Happy playing!

Cover the Orange 2

2010-11-05T13:57:00.000-07:00

Cover Orange 2 is very funny physics based flash game created by Anton Koshechkin and Johnny K. for bubblebox.com.
The aim is to protect the lovely 'orange' and its friend 'apple' from rain by covering them with barrels, wheels and crates.
The game has 25 levels but you can find much more levels which were created with the "Cover Orange Editor". With this editor you can create and share your own levels, too.

The Game :
http://www.bubblebox.com/play/puzzle/1665.htm
Editor :
http://www.bubblebox.com/play/puzzle/1666.htm

GATE 541 Physics for Computer Games: Crayon Physics

2010-11-03T03:31:00.000-07:00

Control a trebuchet to take down a castle along with the king, quenn, knights and many more. Particle physics, collision, friction, gravity, conservation of mass and inertia included. Wonderful tiny pfysics. Nothing breaks:(

http://armorgames.com/play/3614/crush-the-castle

Online Physics Games

Crayon Physics

2010-10-21T07:52:00.000-07:00

Here is another physics game you may find interesting.

Creating objects anywhere you like on the screen and getting results of them...

May the force be with you!..

Kororinpa

2010-10-21T07:28:00.001-07:00

Here comes the lovely 3+ (?!) Wii game Kororinpa.

The objective is to tilt the platform by using remote control and rolling the ball to the gate which you can only activate by collecting the irritating placed gems on your journey.

Do not expect engrossing plots or long lasting levels but the game surely is entertaining.

Enjoy!

P.S. The presentation of the game can be reached here.

The Hand vs. The Astronaut

2010-02-02T14:16:00.000-08:00

Below is a post mortem review and a video about my incomplete Gate541 project titled "The Hand vs. The Astronaut". As you can see in the video the player is controlling the main character which is a hand. I've created the hand by taking photos of my hand while making some gestures and by playing them succesively as frames of an animated sprite. I've written the code in c++ and used OpenGL for rendering so as you might have guessed most of the coding time was spent on rendering billboard sprites, sorting them for alpha blending, handling input, etc. The physics engine I've built can handle sphere particles and rigid bodies represented as boxes or spheres. In the video you can see some box rigid bodies which are static, a bridge hung to another (non-colliding) rigid body using four cables, an anti-gravity force generator and some bubbles which are sphere rigid bodies that float (have negative gravity). The whole project was a lot of fun to design and code. I hope you enjoy it, too...

2d platform game on wii with physics

2010-02-01T00:37:00.000-08:00

In the video above, there is a showcase of wii gameplay of the 2d physics game that i wrote, it uses scripting backend for content.

It is hard to develop game on wii with third party tools that not officially supported by Nintendo. Because of this there are lots of research need to be done before writing an application.

First of all biggest problem is debug, solution for debug can be found on can't touch this. When you can do debug it is easy and fast to fix bug that occur while writing your application.

I wrote what i used on the previous post before, this showcase is still on that software libraries. There is no 2d engine library that truly supports wii. MLLib has lots of problems like z-war.

Omg here comes the video,

Upload video

Physics based Tower Defense Game on Irrlicht ( Incomplete )

2010-01-28T13:30:00.000-08:00

Most of the features are not implemented yet just for observing a functional physics integration you may want to have a look at the in-game video that I have posted below. Hopefully there will be more to show in a few months later :)

In the video you will see a scene with several platforms hanging on the terrain ( which is included in the collision system). These platforms are ( for now ) only clickable and they are used to create certain types towers. Since almost no type is implemented you will see only one type of tower in game. The terrain collision detection is handled by a bounding box divide and conquer algorithm which divides the terrain into certain number of bounding boxes that include certain amount of collision planes. This coarse collision detection approach helps collision detection pipeline a lot as you can eliminate any other object who is not in a bounding box of the terrain. Anyway, then what you will see is spawn place and a haven where you should keep those spaceships (3D model courtesy "3DRT" ) from entering. Lastly there is a "GodModed" hostile spaceship which is just for showing the collision interaction with terrain.

PSP oyununda son durum

2010-01-28T03:47:00.000-08:00

Fizik motoru entegre edilmiştir. Denemeler yapılmıştır. Oyunu tamamlama fırsatım olmadığı halde kesinlikle bitirmeyi düşünüyorum. İnanılmaz eğlenceli bir süreçti. Şu yarım halinde bile insanlarda iyi tepkiler aldım. Bu duruma gelene kadar en fazla zamanı deneme yanılmalar sırasında kaybettim. Bir de biran önce sonuca ulaşmak için hard coded yazmak çok zorladı. Mesela bu şekilde tanımlar yerine
collisionData.friction = (real)0.9;
bir dosyadan okuma sistemi geliştirmek çok daha fazla işe yarar.

Sorunlardan bir tanesi de platformun PC olmaması oldu. Emulatör bulana kadar inanılmaz yavaş ilerledim. Emülatör bulduktan sonrada FPS dengesizliklerinden sorun yaşadım.

Kickstarter.com

2009-12-17T09:51:00.000-08:00

Efendim, böyle bir site keşfettim. Çeşitli projelerimizi bir bütçe belirleyerek buraya 'Gönlünüzden ne koparsa!' diyerekten koyuyoruz, sonra insanlar cidden gönüllerinden ne koparsa veriyorlar. Güzel şeyler de var. İsterseniz kullanın, isterseniz kurcalayın. İşte böyle.
Sonradan not: Amerikan bankalarında hesabımız yoksa kendimiz proje koyamıyormuşuz. Açtırıverirsiniz?!

Kitabın kodları Google Code'da

2009-12-09T11:25:00.000-08:00

Derste takip ettiğimiz kitabın kodları Google Code projesi haline gelmiş. Acaba geliştirmeye de açık mı? Derste beğenmediğimiz, aksayan, anlaşılmayan bir çok noktası çıkıyordu. Bir el atıp güncellesek mi?

Global Game Jam 2010

2009-12-03T10:39:00.000-08:00

Türkiye'de ikincisinin yapılacağı ve dünyada birçok merkezde aynı anda gerçekleştirilecek olan, 48 saat içerisinde, yarışma başlangıcında belli olacak bir temaya uygun bir oyun çıkartılan Global Game Jam yarışmasına katılmak ya da yarışma ile ilgili bilgi almak istiyorsanız http://globalgamejam.org sitesinden kendinize bir account açıp Türkiye'deki GGJ temsilcisi olan Metutech-Atom GGJ'ye de kayıt olabilirsiniz.

Trine - Yeni bulduğum fizik ağırlıklı güzel bir oyun

2009-12-03T09:39:00.000-08:00

Aşağıda linkini gönderdiğim oyunu çok beğendim, çok fazla fizik kullanmışlar ve güzel yapmışlar oyunu. Aslında basit bir platform oyunu. Bir bakmanızı tavsiye ederim. Oyun 470 mb indirip oynamak da gayet kolay

http://trine-thegame.com/site/index.php?page=home

Wii! - Springs and Particles

2009-11-15T23:25:00.000-08:00

Here are our Particles tied to each other with springs. They are first shot up in the air, and then all that acts on them is gravity and their spring connections. They are connected by bungee springs so they can oscillate further away from and nearer towards their twin ends.
Coded using devkitPro and MLlib, emulator is Dolphin.

wii physics
by selin1005

Ballistics and Fireworks Demo using Irrlicht Game Engine

2009-11-12T05:26:00.000-08:00

Here are some examples of what I did. The visualisation is done with the irrlicht's particle system. The only bridge between fireworks and Irrlicht rendering engine is a structure called "CoordinatePack" and as you might have guessed, it only has coordinates of the projectile so the visualization is completely abstracted. Hopefully it will be easy to switch to the Ogre game engine, should I want to expand the project further.

By the way the demo follows this particular order: Bullet, Artillery, Fireball, Laser, Fireworks. Also you may notice there is a slight variation in ballistic projectiles' speed.. It's not a bug, it's a feature :D

Physics for Wii

2009-11-12T01:56:00.000-08:00

Development for wii is very hard, first of all its official sdk is not commercial and nintondo wants money for standart development kit. Because of this issue, we choose the unofficial path to code into wii.

For all homberew tools, we will reference this site. "http://www.wiibrew.org"

First of all we need development tools, from here "Development" we learn that there is a program kit called devkitPro, it provides us the standart libraries to develop wii programs.

After installing and setting up the environment, all left is to open example project and run it.

After studying the example project we see that its an unix like environment. So basicly if you know how to code programs in c++ to unix(linux?), you can port anything to wii.(Don't forget the limits of hardware of course)

Wii has an ibm cell processor and customized ati gpu. It has an opengl like api which is called gx.

There are several tools and converters at "Development tools"

We choose MLlib for graphical library, because its has very friendly interface and has many examples in it.

But if you want to develop gui application (like messenger, browser) you can use "libwiigui" for that.

If you dont have a wii, you can use dolphin emulator to run
Dolphin Emu

Note: Nintendo doesnt support homebrew applications so be careful, while soft modding your wii.

Ballistics on PSP

2009-11-11T23:28:00.000-08:00

I have implemented ballistic on PSP. I haven't implemented graphics fully yet so I am using triangle for all models. I have artillery and bullet implemented. Please show mercy while watching because it is really hard to implement on PSP :)

Some samples from class

2009-11-09T13:56:00.000-08:00

Below is a small demonstration of some of the work done in the first 4-5 classes. First you will see some ballistic examples in which all the particles are affected by gravity and some drag and then you will see the fireworks example in which new particles are created in a sequence. At the end of the video you can see a primitive snow effect which I've randomly created while experimenting for the fireworks sample :) Excuse the low frame rate in the video, the capture software I've used wasn't a very good one. Hope you enjoy it...

The science of simulating physics for human visual consumption…

2009-10-31T04:13:00.000-07:00

I recommend this Physics Based Animation site is dedicated to accumulating and highlighting research and miscellany in the exciting field of physics-based animation for computer graphics.

Physics Game Jam

2009-10-31T00:11:00.000-07:00

Here is a source for Physics Games. It is the web site for the game jam that was done last year with the theme of Physics Games. Site also refers to a blog and the results of the jam.

After 4 weeks

2009-10-25T13:43:00.000-07:00

After 4 weeks of "hard work", we come up with covering the basic particle physics concepts and "most" folks developed their own, so called particle physics engines. Last week, they flied their first bullet using their physics engines. Now we have folks targeting various platforms like PC, Wii, PSP and XBox, various game engines like OGRE, Irrlicht and various programming languages like Python, C++, C#. Nowadays I am looking for a way to motivate them to put down their day to day experiences about the course on the blog.

The very fist class of the course...

2009-10-07T12:55:00.000-07:00

The very first class of the course was done last week on Thursday at METU II PC Lab at 6 PM. There were 9 of us. Me as the instructor and 8 attendees. To note and appreciate them, the first attendees were Utku, Semih, Denizhan, Emre, Selin, Serdar, Serkan and Erdoğan. After discussing the syllabus, we spent some time on FarSeer Physics Engine. Lastly, we closed the session after registering the attendees to the Google Code site of the course.